# -*- coding: utf-8 -*-
"""
created on 2017/12/7 14:47

@author: didichen
"""


# 开始地址：http://www.pythonchallenge.com/pc/def/0.html
# 结束地址：http://www.pythonchallenge.com/pc/def/274877906944.html
# 打印2的38次方
# 274877906944
print(2**38)
